Retailers May Use Video Cameras To Track Shoppers

And our last word in business is: Surveillance - not from the NSA, but from a store near you.

RENEE MONTAGNE, HOST:

Retailers have long tracked activity in stores, with video cameras. Now, they have an option to track you. Security tech company 3VR has unveiled an in-store video camera that allegedly uses facial recognition to gauge your age, gender and mood.

INSKEEP: Retailers could use real-time information to customize digital signs - just as you are passing.

MONTAGNE: They might even warn a nearby sales associate of your facial expression as you head toward the counter.